IGCSE Grade 9 Computer Science (CS) Classes in Villupuram, Online Coaching

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Why this fits a Villupuram student

Most Villupuram schools follow the Tamil Nadu State Board (TN SB), with CBSE, ICSE/ISC and Cambridge schools alongside. We teach the CBSE, ICSE/ISC, Cambridge IGCSE, GSEB and NIOS computer subjects, not the TN SB computer paper itself, so this course suits a Villupuram student in one of those schools.

✓Live classes at Indian Standard Time, never pre-recorded
✓Small batch or one-to-one, so a Villupuram student can interrupt and ask
✓Taught by Kajal Ma'am, teaching computer subjects since 2006
✓Free demo class before any payment

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What IGCSE Grade 9 Computer Science (CS) covers

10 units. Tap any unit to see its topics.

011. Data Representation+

Number systems: binary, denary and hexadecimal
Converting between binary, denary and hexadecimal
Two's complement and binary arithmetic (binary shifts)
Text, sound and image representation
Measuring data storage (bit, byte, KiB, MiB, GiB, etc.)
Data compression: lossless and lossy

022. Data Transmission+

Packets and packet switching
Serial vs parallel, simplex/half-duplex/full-duplex transmission
Universal Serial Bus (USB)
Error detection: parity check, checksum, check digit, ARQ, echo check
Symmetric and asymmetric encryption

033. Hardware+

Computer architecture and the CPU; von Neumann model
Core, cache and clock speed; fetch-decode-execute cycle
Embedded systems
Input and output devices
Primary, secondary and off-line storage (magnetic, optical, solid state)
Sensors, microprocessors and control/monitoring systems
Logic gates (NOT, AND, OR, NAND, NOR, XOR)

044. Software+

System software vs application software
Operating systems and their functions
Interrupts and the role of the OS
High- and low-level languages; compilers, interpreters and assemblers
The relationship between hardware, firmware and software

055. The Internet and Its Uses+

The internet vs the world wide web; URLs
HTTP and HTTPS; web browsers and how web pages are retrieved
Cookies: session and persistent
Digital currency and blockchain
Cyber security threats (brute-force, data interception, DDoS, phishing, malware, etc.)
Keeping data safe: solutions and protection methods

066. Automated and Emerging Technologies+

Automated systems: sensors, microprocessors and actuators
Robotics and the characteristics of robots
Artificial intelligence: expert systems and machine learning
Advantages, disadvantages and applications of emerging technologies

077. Algorithm Design and Problem-Solving+

Program development life cycle (analysis, design, coding, testing)
Computational thinking: decomposition, abstraction, pattern recognition
Pseudocode and flowcharts
Standard methods of solution: linear/bubble sort, linear/binary search, totalling, counting
Trace tables and identifying/correcting errors
Validation, verification and suitable test data

088. Programming+

Declaring and using variables and constants; basic data types
Input, output, sequence, selection and iteration
Nested statements; counts and totals
One-dimensional and two-dimensional arrays
Procedures, functions and parameters; library routines
File handling; writing maintainable programs

099. Databases+

Single-table databases
Fields, records and data types; primary keys
Database structure (validation and basic SQL retrieval)
Querying and selecting data with structured query language (SQL)

1010. Boolean Logic+

Logic gates and their symbols
Constructing logic circuits from problem statements
Producing and completing truth tables
Writing logic expressions from circuits and vice versa

See the full IGCSE Grade 9 Computer Science (CS) course →

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Students across Villupuram

We teach IGCSE Grade 9 Computer Science (CS) to students across Villupuram and the rest of Tamil Nadu online, so nobody travels to a centre.

Every class is live at Indian Standard Time, in a small batch or one-to-one. Nothing is pre-recorded, so a student in Villupuram asks questions in the moment. Recordings are provided for revision only.

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What students & parents say

4.9/5 from 36 verified reviews.

“

★★★★★

The course's greatest benefit for me was the profound comprehension of the core principles it fostered, which has been pivotal in enhancing my academic foundation.

Sherwin

Student

“

★★★★★

I was able to get my doubts cleared and I had access to a lot of material. Always got response within the committed time.

Vibha

Student

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Frequently asked questions

Do you teach IGCSE Grade 9 Computer Science (CS) to students in Villupuram?+

Yes. Classes are live and online, so a student in Villupuram joins the same small batch or one-to-one session as anyone else, at Indian Standard Time, taught by Kajal Ma'am.

Which board does this suit in Villupuram?+

How many units are in IGCSE Grade 9 Computer Science (CS)?+

10 units.

Is there a free demo class for Villupuram students?+

Yes. You see a real class before any payment. Message us on WhatsApp and we will arrange it.

Book a free demo for IGCSE Grade 9 Computer Science (CS) in Villupuram